Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arabidopsis thaliana | Q7XJM2 | - |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
seedling | - |
Arabidopsis thaliana | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
(7E,7'E,9Z,9'E)-7',8'-dihydro-psi,psi-carotene + O2 | - |
Arabidopsis thaliana | zeta-apo-10'-carotenal + beta-ionone | - |
? | |
(7E,7'E,9Z,9'E)-lycopene + O2 | - |
Arabidopsis thaliana | zeta-apo-10'-carotenal + beta-ionone | - |
? | |
9'-cis-neurosporene + O2 | low activity | Arabidopsis thaliana | zeta-apo-10'-carotenal + beta-ionone | - |
? | |
9-cis-zeta-carotene + O2 | - |
Arabidopsis thaliana | 9-cis-zeta-apo-10'-carotenal + beta-ionone | - |
? | |
additional information | enzyme substrate specificity, dynamic modeling, overview. No activity with the tri-cis-configured PDS or ZDS intermediates and products, i.e. 9,15-di-cis-phytofluene, 9,15,9'-tri-cis-zeta-carotene, 7,9,9'-tri-cis-neurosporene, and 7,9,9',7-tetra-cis-lycopene, as well as with non-canonical isomers of phytofluene (9-cis, 15-cis, all-trans). 9-cis-Lycopene is a poor substrate, and all-trans-lycopene is no substrate. AtCCD7 shows specificity for cleavage of the trans-configured C9-C10 double bond | Arabidopsis thaliana | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
AtCCD7 | - |
Arabidopsis thaliana |
SL biosynthetic enzyme | - |
Arabidopsis thaliana |
strigolactone biosynthetic enzyme | - |
Arabidopsis thaliana |
General Information | Comment | Organism |
---|---|---|
physiological function | CCD7 enzymes are highly stereospecific, cleaving only 9-cis-configured substrates, such as 9-cis-beta-carotene. The strigolactone biosynthetic enzyme AtCCD7 converts 9-cis-configured acyclic carotenes, such as 9-cis-zeta-carotene, 9'-cis-neurosporene, and 9-cis-lycopene, yielding 9-cis-configured products and indicating that AtCCD7, rather than AtCCD4, is the candidate for forming acyclic retrograde signals that are thought to derive from the cleavage of poly-cis-configured carotene desaturation intermediates | Arabidopsis thaliana |